### Please describe the problem.

Syncing with a special remote "borg" seems to fail - sometimes, but not always.

### What steps will reproduce the problem?

I honestly do not know the steps to reproduce this issue. I wish I could. There is one call exiting with a failure (see the debug log), although I don't know which command is being executed before that.

### What version of git-annex are you using? On what operating system?

git-annex version: 10.20240129

Debian Stable 12.5

### Please provide any additional information below.

[[!format sh """
...
[2024-05-23 22:39:40.999733121] (Utility.Process) process [57508] read: git ["--git-dir=.git","--work-tree=.","--literal-pathspecs","diff","--cached","--name-only","-z","--diff-filter=ACMRT","--","."]
[2024-05-23 22:39:41.001888748] (Utility.Process) process [57508] done ExitSuccess
[2024-05-23 22:39:41.002613093] (Utility.Process) process [57509] read: git ["--git-dir=.git","--work-tree=.","--literal-pathspecs","symbolic-ref","-q","HEAD"]
[2024-05-23 22:39:41.003662566] (Utility.Process) process [57509] done ExitSuccess
[2024-05-23 22:39:41.004051234] (Utility.Process) process [57510] read: git ["--git-dir=.git","--work-tree=.","--literal-pathspecs","show-ref","refs/heads/main"]
[2024-05-23 22:39:41.005913975] (Utility.Process) process [57510] done ExitSuccess
Auf Branch main
nichts zu committen, Arbeitsverzeichnis unverändert
[2024-05-23 22:39:41.016177898] (Utility.Process) process [57493] done ExitFailure 1
ok
...
[2024-05-23 22:39:56.926564597] (Utility.Process) process [57484] done ExitSuccess
[2024-05-23 22:39:56.92713831] (Utility.Process) process [57523] done ExitSuccess
sync: 1 failed
"""]]

### Have you had any luck using git-annex before? (Sometimes we get tired of reading bug reports all day and a lil' positive end note does wonders)

Definately, git-annex is my Nr.1 tool for managing my files. There is no comparable alternative out there as of right now. Keep up the good work!
